The th term of an arithmetic progression is and the th term is

MATHEMATICS · Single correct · GCSE · Further Mathematics · Sequences and Series · Sequences and Series

Problem

The

4

th term of an arithmetic progression is

13

and the

10

th term is

37

. Find the sum of its first

30

terms. (a)

1710

(b)

1770

(c)

1650

(d)

1830